Being able to understand what a map is, and how to read one, is important for campers of all ages. Start your smallest campers out on the right track by having them draw their own version of a map. You can use the area surrounding the campsite, or have them draw the hiking path you just took. It's a good opportunity to talk about landmarks and directions. Challenge older kids by giving them a compass and having them plot the directions you take on a hike.
Another fun map-oriented activity is a constellation hunt. Look through a book about constellations with your kids and see how many you can find in the night sky. You can even work a little history lesson into the mix by telling the stories behind each constellation's name. See any other shapes lurking in the stars? Have your kids make up names and stories for these brand new constellations.